Are Rindler Quanta Real? Inequivalent Particle Concepts in Quantum Field Theory

Abstract
Philosophical reflection on quantum field theory has tended to focus on how it revises our conception of what a particle is. However, there has been relatively little discussion of the threat to the "reality" of particles posed by the possibility of inequivalent quantizations of a classical field theory, i.e., inequivalent representations of the algebra of observables of the field in terms of operators on a Hilbert space. The threat is that each representation embodies its own distinctive conception of what a particle is, and how a "particle" will respond to a suitably operated detector. Our main goal is to clarify the subtle relationship between inequivalent representations of a field theory and their associated particle concepts. We also have a particular interest in the Minkowski versus Rindler quantizations of a free Boson field, because they respectively entail two radically different descriptions of the particle content of the field in the *very same* region of spacetime. We shall defend the idea that these representations provide *complementary descriptions* of the same state of the field against the claim that they embody completely *incommensurable theories* of the field.
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DOI 10.1093/bjps/52.3.417
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Against Field Interpretations of Quantum Field Theory.David Baker - 2009 - British Journal for the Philosophy of Science 60 (3):585-609.
The Fate of 'Particles' in Quantum Field Theories with Interactions.Doreen Fraser - 2008 - Studies in History and Philosophy of Science Part B 39 (4):841-859.
Taking Particle Physics Seriously: A Critique of the Algebraic Approach to Quantum Field Theory.David Wallace - 2011 - Studies in History and Philosophy of Science Part B 42 (2):116-125.
How Quantum Theory Helps Us Explain.Richard Healey - 2013 - British Journal for the Philosophy of Science (1):axt031.
Antimatter.David Baker & Hans Halvorson - 2010 - British Journal for the Philosophy of Science 61 (1):93-121.

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Against Field Interpretations of Quantum Field Theory.David Baker - 2009 - British Journal for the Philosophy of Science 60 (3):585-609.
The Fate of 'Particles' in Quantum Field Theories with Interactions.Doreen Fraser - 2008 - Studies in History and Philosophy of Science Part B 39 (4):841-859.

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